Commercial Contractor specializing in general contracting for all types of architectural and engineering projects to serve No ... rtheastern Oklahoma. Magnum was founded on the principle of providing clients with construction projects that exceed their expectations. The company approaches each project with the commitment to dleliver value with professionalism. The Magnum staff of construction specialists are dedicated to working for the client's best interest. Whether the project delivery method is Construction Management. Design-Build, General Contract or the project is a ground up, expansion or renovation; Magnum has established itself as a proven leader in the construction industry. read more